Lifting device



- June 2, 1931. R. c. PENFIELD LIFTING DEVICE 7 Sheets-Sheet 1 Original Filed May 5 June 2, 1931. c PENHELD 1,808,175

LIFTING DEVICE Original Filed May #5, 1926 7 Sheets-Sheet 2 a rib riiay Jane 2, 1931.

R. c. PENFIELD I LIFTING DEVICE Original Filed May 5, 1926 '7 Sheets-Sheet 3 1 i 7 n 6 v w J itaz'iz y June 2, 1931.

R. C. PENFIELD LIFTING DEVICE Original Filed May 5,

7 Shets-Sheet 4 u 1931- I R. c. PENFII ELD 1,808,175

LIFTING DEVICE Original Filed May 5, 1926 7 Sheets-Sheet 5 5 Jam.

June 2, i 931. Q pE fi 1,808,175

LIFTING DEVICE inal Filed May 5, '1926 7 Sheets-Sheet 6 attorney June 2, 1931.

R. C. PENFIELD LIFTING DEVICE Original Filed May 5. 1926 7 Sheets-Sheet 7 jive w didoa'nqy not be referred to in detail.

Patented June 2, 1931 Parser r RAYMOND C.PENF1 ZELD, or N'EW YORK, N Y.

LIFTING DEVICE,

Original application filed May 5, 192s,

My present invention relates to brick 111aking machines, and more particularly to an improved lifting device'for use in such machines. 7

"My present invent-ion is a divisional of my application on automatic hacking I118.- chines Serial No. 106,875, filed May 5, 1926, and is directed to cover the novel features of the construction and arrangement ofparts comprising the lifting device therein illus trated and described. i I

' In a brick making machine such as describedand claimedin the application above referred to, and of which the present isadivisional, a slug or plurality of slugs of clay are extruded simultaneously from a slug forming niachine and placed on a conveyor. Such a conveyor is described and claimed in detail in my copending application Serial No. 204;795,-filed July ll, 1927, and which case is also a divisional of applicationSerial No. 106,875. The system of conveyors referred'to is capable of'conjoint use with the improved lifting device of the present application but is notes'sential'there to and therefore such conveyors have not been illustrated except generally and will It is suificient tosay that the conveyors referred to deliver slugs of clay in succession-to a portion of the apparatus forming the present invention and the present apparatus, therefore, operates in synchronism with the delivery-end of such conveyorymoving' the delivered slugs of clay transverselyto the line of travel of the conveyors-so as to arrange a plurality of slugs of clay in parallelaif rangement with respect to each other.

7 A portion of the apparatus comprising the present invention consists of carriersfor receiving'the slugs-of clay delivered thereto", which carriers, when filed, are automatically moved into position to have the slugs-carried thereby cut up into bricks and it is essential I forthe proper operation of the brick making machine that a sufficient number of such care riers be provided and proper means be provided for delivering or placing such carriers in successionatthe delivery end of the-conveyors and removing the same therefrom;

Serial No. 106,875. Dividedand. this application. filed November 1, .1928." Serial No. 316,546. 7

The; present invention, therefore is dirooted to ali fting device for providing a continuous stream of slug: carriers to and in position with respect to the delivery end of the conveyor;

In carrying out my invention I provide riers andateach end thereof provide auto matically operable elevators: for carrying the freshly unloaded carriers from the upper to the lower level and at the other end provide anelevator for moving the'unloaded carriers from the lower to the upper level inpositionto b'cfed acros'sthe path ofmovement of the slug or slugs. In connection with the carrier operating means is a-slug carrying means which is constantly operable and. intermittently operable in a vertical direction such means. whenin itsupper limit being iii-positionto receive and transport a-slu'g or slugs across-the entire width of the carrier and as it is moved from the-upper tothe lower'position, depositing such slug'onslugs-on-the carrier; and when in its lowermost position being entirely free from theficarrierand permit-ting a lateral movement of thecarrier with respect theret0. i i

An object of my invention; therefore, is animproved' means for moving a carrier a practically rectangular track for: thecar laterally of an' oncoming stream of clay of clay by a t an improved meansfor positioning a pluralit-y ofcarr iersin succession in the path of movement of oncomingslugs of clay or other material.

In the accompanying drawings, illustratmg the preferred embodiment of my; 111

vention I s Fig. I 1s a side GlBV-ttlOIlf Fig. 7 is an enlarged view of a portion of Fig7f- Referrin to the (.lIZI-WIH 'S 10 desi nates b a pit of any suitabledimenslons as regards of Fig. 1, and i Fig. 8 is an end elevation length, breadth and depth. On opposite sides of the pit 10 are erected frame-works 11 of ordinary structural steel and associated with saidframeworksso as to be movably vertical therein is a horizontally arranged bridge 12. Means (not shown) is provided for moving such bridge vertically at. stated or predetermined periods but as this'mechanism forms no part of the present invention, it hasnot been illustrated and will not be further described. For-the full disclosure of the mechanism by means of which the bridge 12 may be moved vertically, attention is directed to the application 106,875, of,which-the present is a divisional; .Supported on the bridge 12 are a pair of amtlelly arranged belts 13 which are utilized for carrying slugs of clay 14 from a brick machine and into position in carriers which willbe hereinafter described.

At the bottom of the pit12 and arranged to. extend along the length thereof and transversely to the bridge 12 are parallelly arranged pairs of channel irons 14' and secured to each pair of channel irons 14 at'various points along the length thereof are bearings 15, such bearings being secured to the base of the pit 10 by bolts 16. Thebea-rings 15 on the channel irons 14; are arranged in groups and are in alinement with each other, and in each group of alined bearings is rotatably mounted ashaft lffand' also secured tocach shaft 17 are grooved rollers 18, Such rollers 18'are also arranged in groups, with the rollers of .each' group in alinementwith the other to receive elongated shoes 19 secured to the under side ofslug" carriers that will behereinafter described.

Eachof the shafts 17 have secured thereto sprockets 20 and oversuch sprockets run endless sprocket chains 21 and by means of which the shafts 17 are rotated'inthefsame directionand at the same speed to. thereby impart a uniform surface speed to thepperiphery of the grooved rollers 18. Associated with'one of the shafts 17 by 'means of a clutch 21 is a shaft 22 rotatably 'mounted insuitable bearings and having secured at its outer end a sprocket wheel 23. Tins sprocket wheel 23 is in alinement Wlth a sprocket wheel 24 secured to the stub shaft 25 that is rotatably mounted in suitable bearings on 23 and 24 runs anendless sprocket chain 26 and by means of which rotative movement is imparted to the plurality of parallelly arranged shafts 17. Also secured to the stub shaft25 is a sprocket wheel 27 which is in alinement with a sprocket wheel 28 secured to .a shaft 29 to be hereinafter referred to. Over the sprocket wheels 27 and 28 runs an endless sprocket chain 80 and by means of which power is transmitted from the shaft 29 to the vstub shaft 25.

On'e ither side of the pit 25 side'also of the bridge12 are secured angle bra-ces32 spaced apart from each other and with corresponding brackets 32 in alinenient with each other, and associated with each pair of alined anglebraces are channel members 33. Secured tothe topof the channel members 33 parallel to each other and extending transver'selyfof the bridge 12 are spaced channel members. 34:. To the top surface of such channel members 84 are secured by bolts 85 bearing members 36 such bearing members 36 being arranged in groups and'with the bearings in each group in ahnement with each other and in each base and adjacentone end thereof is a drivand on one ing. motor 41.. -The.dIiViI1g' pinion42 of such motor mesheswith and drives a gear 4E3'securedto'a shaft 44: rotatably mounted inthe bearings on the. base 40. Also .se-

cur'ed'to th'e shaft 44 is apinion 45 which meshes with anddrivcs a gear46 secured to a shaft t7-als0 rotatably mounted in bearings on the base 40 andlying parallel to the 'shaft't i. Secured to one end ofthe shaft 47 is a sprocket wheel 4 8 in alinementwith afsprocket wheel 49 on the shaft 25 and Over such sprocket runs an endless sprocket chain 50;

c The two .outermostfparall'elly arranged shafts 37 'or .those'to the rightas shown in Fig. 5, areprovidedwith alined sprocket wheels 251, over which runs anendless sprocket chain'52 and b.y'.means of which said. shafts 37 are enabled to"r un in the same direction and at the same rate-of speed,

it being understood that the sprocket wheels 51are of-the same diameter and pitch. secured toxthe channelfmembers EH between the two shafts 37 referred to are bearings.

53 in which is rotatably mounted a shaft .54 and this, shaft has secured thereto spaced gears 55 adapted to engage with racks 56 secured to: the bottom s'urface of the slug neon-n75 carriers to. be hereinafter described. Also secured to suclr shaft: 54isa sprocket wheel 57 which engages with. a sprocket chain 52 and: acts as a tightening element therefor. The purpose of the gears 55 will appear as the description of: the invention progresses. pit 10 and to-the left of the bridge 12', while spaced apart from each other, are pairs of angle braces 58, such pairs of braces being in line with each other andsecured to each palr are channel members -59 Wh10l1 extend,

shaft is secured a plurality of grooved pulleys- 64'. These pulleys are-spaced apart in a manner similar to-the grooved rollers'38 above described as being: attached to the shafts37, and like such grooved rollers 38', are adapted to be engaged by the shoes 19 on theslug carriers to'be hereinafter described. Several of the shafts 63 are connected together by sprockets andsprocket chains 65-so-as to insure th atsuch connected shafts will run' at the same speed and in the same direction. Secured t'othe uppers surface-of thechannelmembers 60 are bearings 66in. which is rotatably mounted a" shaft 67, such shaft carrying, intermediate" its ends gears68 adapted to meslrwith the rack 56-on the under surface of theslug: carriers to-be hereinafter described. The shaft: 67 is connected by coupling. 69 to a shaft70 forming part of themechanism mounted on thebase 40, and. such shaft 70 isintermittently operated by mechanism that forms no partiof the present invention. Reference is hereby made to application Serial No. 106,875, of which the present'applicat-ion is a divisional, for a complete disclosure withregard to the mechanism for operating the shaft 70. The shaft 67 is,: therefore, intermittently rotated in the direction' of the I arrow shown in Fig. .4 and, therefore, periodically moves theslug carrier associated therewith to the. right, as viewed in said figure, and transversely of the bridge 12; Secured to one end of oneofthe'shafts37 is a: gear 72 which meshes with andxis driven by a gear 73 secured to a shaft- 74 that is rotatably mounted in bearings 7 5 secured-to the top of the channel members 33... Also secured to the shaft. 74is a gear. 76 which meshes with andis driveniby a pinion 77 Secured at opposite: sides of the secured. to a shaft 78 rotatably mounted in bearings 79 on a frame SOsuspended from the channel, members 33. .Also secured to theshaft 78 is'a gear 81 which meshes with and is driven by a. pinion '82 secured to the drive shaft' 33 of. amotoror other prime n1over84 mounted Ont-he sub-frame 80. As the slug carriersto be hereinafter describedare moved to the right of Fig. 5 in the manner above described, they are moved gradually toward the spaced gears 55' and eventually the racks 66 thereon come into engagement with'thesgears 55. Then this occurs, such slug carriers are positively driven to the right',-as viewed in Fig. 4 toward" mechanism to be hereinafter describeda The movement. to the right of the slugcarriers takes place as referredtoabove by a step-by-step movement, such movement being. initiated by the movement of the slugs of clay l4 themselves. Such action is follows: Referring to Fig. l, 88 designates generally a portion of. the framework off the machine and mounted on this portion is a base'8 '9, adjacent to one end of. which is adjustably mounted a bracket 90. Secured to or'formed integralwith the bracket 90is a downwardly extending member 91 in which is secured: a laterally extending. shaft" 92..

On the member 91 is secured contactor points 93' and assoclated withthese points is aswitch blade 94 secured to arms 95' rotatably mounted on'the shaft 92. .Also formed I integral with the member 91 and extending upwardly. therefrom is an arm95 and slidably mounted in the upner end ofthis arm is a'hoolr bolt 96, the. rear end of which is I threaded, and provided on the other side of the arm 95 with adjusting nuts 97 and by means of which the hook bolt 96 relative to the arm 95 may be adjusted. Secured to theforward end of the hook bolt 96 isone" end or a coil spring 98, the other end 1 of this coilspring beingv attached to the upper end ofthe pivotally mounted member 95. The; lower portion: ofthe arm 95 lies in' the path of movement of the on-coming s-lugsof clay 14-.and is adapted to be engaged thereby to rotate the member 95and force the switch blade 94 out ofengagement with the contact points 93 against the tension of thespring 98. The switch blade 94 and contact points 93-control the operating circuit for the; clutch operating solenoid 98 that is associated with the mechanism illustr'ated in Fig. 6. This de-energization of the solenoid 98 brings the clutch mechanism 99" and 100 into association witheach other and causes a rotation. of the shaft 101. Through appropriate mechanism which does not concern the present invention, this will cause,.first,ia dropping of'the bridge l2 and i the parts carried thereby downwardfor a sufiicient distanceto-have the upper face of the'endlessfslug conveyors 13 clear the lower 7 surface of the slug carriers, and afterwards 7 switch contacts 93, thus again closing the circuit for the solenoid 98 and the parts returned totheir normal position.

Arranged above the channelmember 34 is a'framework103 on which is mounted a plurality of alinedbearings 10% and in these alined bearings is Jrotatably mounted a shaft 105. Intermediate the cnds of the shaft 105 is secured sprocket wheel 106 over which runs a sprocket chain 10'. leading from the motorlOS secured to the frame 103. At various points along the length of the shaft 105 are a ranged pivotally mounted carriers 109, at the lower free end of each of which is rotatably mounted a slit saw 110. On the shaft of each of the saws 110 is a sprocket 11 over which runs sprocket chain 112. For each of the sprocket chains112 there is a sprocket 113 on the shaft 105. The end of each of the pivoted .frames 109 at the endremote from the saws 110 are provided with adjustable holding means 113, which adjustable holding means 113 also engage with a portion of the frame 103 and limit the downward movement of the saws 110. hen one ofthe slug car- Adjacent the saws 110 and in the pit 10' is formed an elevator well 11 1- and secured to the bottom surface of this well is a vern simultaneous rotation of I V m the same direction and at the same rate V tically arranged hydraulic cylinder 115, and

'working. in this cylinder 1. is-a piston, 116.

The upper end of the piston 116 is connected to the lower face of an elongated rectangular framework 117. Secured to the top sur face of transversely thereof and 1 parallel-to each otnerare pairs of channel irons 1'13 and to the top of such pairs of channelv irons 118 are secured groups of bearings 119. .The bearings of each group-119 are in alinement with each other and in each group is rotatabl inounteda shaftv120, there thus being a"v plurality of parallelly arranged shafts 120. The shafts 120 areinterconnected-together by driving sprocket chains '121 and appropriate sprockets 1 2 to thereby cause such shafts 120 of speed. Suspended from the rectangular framework 117 1s a subframe 123 on which is mounteda drivingmotor 12 1 and a train work 117.

the slugs of clay 1 1 the rectangular framework 117 of gears designatedgenerally by the reference character 124.1 Secured to one end of one of the shafts 120.:is a gear 125 which meshes with a train of gears 124i. .Secured to the shafts 120 are'grooved rollers 126 and v such grooved rollers are arranged in groups, each group being in alinementwith each other so as to engage with the shoes 56 on the under surface of the slug carriers. It is obvious that the direction of rotation of the the rectangular frame 117 is secured a rectangular framework 128 and-which frameworks extend at right angles to the frame- On 'eachof the frameworks 128 are arranged pairs of guiding rollers 129, the pairs of guiding rollers 129 being in alinement with each other and defining a passageway in which is guided a slideway 130 on a framework 131 secured to the sides of'the pit 10.- In the pit 10, at each end thereof, ismounted a bearing 132-and in each bearing is rotatably mounted a shaft 133. Ateach end ofthe shaft 133 is so cured the lower end of a connecting rod 131, and such connecting rods extend upwardly and have theirupp'er ends pivotally attached to the lower'ends of a connecting link 135, such connecting links being pivotally attached at their upper ends to the rectangular frames 128. Theshaft 133, the connecting links v1341, and 135, constitute an equalizing arrangement for the rectangular frame 117, whichinsures that such framework 117 'will be maintained horizontal at all points during the vertical movement thereof; When the rectangular framework117' is in its uppermost position, the groups of rollers 118 are in position to receive a slug carrier as it passes under the slitting saws 110,-thegrooved rollers 118 inthis position rotating in a clockwise direction, as viewed in Fig. 5 and the circuit of the motor 124;, under these circumstances, being controlled by switch blades 136 and 137 respectively. hen a slug carrier,;designated generally by the reference character' l38, reaches the extreme right hand positionyas viewed in Fig.6, it will'e'ngage with a pivoted switch blade 139 'andwill move the same out of engagement with the switch co'nta'ct'llO. This switching mechanism is ,inthe energizing circuit for the motor 124 and, therefore, the rotation of the switch blade 139 breaks the energizing circuit above referred to, stopping the motor; 1241 and bringing the loaded slug carrier 138t0 rest in the posit on shown in Fig; .5. Y a

ver one end of the pit 10 is an overhead framework 1&2, carrying hydraulic cylinders 154. In the cylinders 15 1 work pistons nism for the hydraulic cylinders 154 in such of the machine.

.a manner as to lower the brick lifting 'devices 1 down onto the loaded slug or brick carrier 138 with the brick lifting elements of the brick lifters 160 in position to engage with the individual brick in such carrier. In this downward movement one of the brick lifter-s 160 engages with the roller 1751'0- tatabl'y mounted on a link 176. This link, in turn, is pivotally mounted on a shaft 177 onthe end of the lever 178. A spring 179' is associated with the link 176 and tends to rotate the same about the shaft 177 in a counter-clockwise direction. A. projection on the link 176 is adapted to engage with a pin 180 secured to and extending laterally of.

the lever 178 and limits the counter-clockwise movement of such link 176. The lever 178 is pivotally mounted at the end remote from the shaft 177' in a bracket 181 secured to any suitable portion of the framework of the machine. Pivotally attached to the lever 178 intermediate its ends and extending downwardly therefrom is a rod 182, the lower end of this rod being slidably mounted in a bearing 183 secured to the framework Secured to the rod 182 adjacent to the bearing 183 isa radially extending contact blade 184 that is adapted to engage with a contact blade 185 secured to a bracket 186 on the framework of the machine. In this downward movement, the brick lifter engages with the roller 175 and rotates the link 176 about the shaft 177 as a center in a clockwise direction against the tension of the spring 179 and when the brick lifter has moved downward beyond the roller 175, the spring 179 will rotate the link 176 in a counter-clockwise direction until the projection thereon engages with the pin 180. The operator controls the brick iengaging devices of the brick lifters 160 so as to grasp and hold therebetween the individual brick in the slug carriers 138 and then controls the hydraulic cylinder 154 to move the brick lifters 160 upwardly. In this upward movement the upper edge or corner of one of the brick lifters 160 engages with the roller 175 and because the projection on the links 176 engages with the pin 180, the lifters 178 and 176v will be rotated about the pivot point of the lever 178 as a center, lifting the rod 182 and bringing the contact 184 into engagement with the contact 185. These contacts are in a controlling circuit (not shown) for controlling devices that control the operation of the hydraulic cylinder 115. The hydraulic cylinder 115 is controlled to lower the piston 116 therein and the frame 117 thereupon moves downwardly ujntil one of the frame 'membens comes into engagement with the contact 184 and force s'the same out of engagement with the contact 185, thus breaking the energizing circuit above referred to andthe rectangularframe 117 comes to rest with the grooved rollers" 118 thereof in alinement with the grooves wheels or rollers 18. When the rectangular frame 117starts downward, the

contact 139 will rotate into engagement with the contact 140 but this will have no effect at this time on the energizing circuit for the motor 124 because simultaneously with the making of the circuits between the contacts 139 and 140, the contact between the contacts 136 and 137 is broken. When the rectangular frame 117 reaches its lowermost position, the contact 136 moves into engagement with a contact 187 secured to a bracket 188 on the foundation of the machine, completing the energizing circuit for the motor 124 and causing it to rotate its armature in a direction to rotate the grooved rollers 118 in a counter-clockwise direction and moving thenow empty slug carrier 138 to the left, as lviewed in Fig. 5, and onto the grooved rollers 18. When the empty slug carrier 138 has moved to the left a sufficient distance, the lever 189 is released and the contact carried thereby is separated from contact 190. This causes a controlling movement of the hydraulic cylinder 115 to move the plunger 116 thereof upwardly and carrying. the

rectangular frame 117 therewith. Then the contact 136 becomes separated from the contact 187, themotor 124 is deenergized and the grooved rollers 118 brou ht to rest. The upward movement of the plunger 116 ceases when the contact 136 engages with the contact 137.

At the end of the pit 10 remote from the well 114 is a well 203, to the bottom of which is secured an hydraulic cylinder 204. Vertically movable in such cylinder there is slidably mounted a vertically arranged piston that has secured to the top thereof a rec tangular framework 205 similar in all respects to the rectangular framework 117. On the lower surface of such rectangular framework 205 and at either end thereof are downwardly extending frames,206,-provided with spaced pairs of rollers 207 for engaging with guideways 208,1 attached to the sides of the well 203,.and pit 10. On the ends of the-pit 203'and at each end thereof are arranged'bearing blocks 209 in alinepivotally attached to the downwardly extending frames 206. Secured to the upper surfaceaof the rectangular framework 205 are groups of bearings 213, and in each group of bearings is rotatably mounted a shaft 214 on which, at intervals, are secured grooved rollers 215, such rollers being, therefore, arranged in groups and in alinement with each other so as to form rotatable tracks to receive the downwardly extending shoe 57 attached tothe lower surface of the slug carriers 138. When the rectangular frame 205 is in its lowermost position, as shown in Fig. 4, the grooves in the groove rollers 215 are in alinement with the grooves in the grooved rollers 18, shown in Fig. 4, and in the same horizontal plane therewith so that a slug carrier 138 resting on the grooved rollers 18 may be fed to the left of such Fig. 5 and into position on the grooved rollers 215. The grooved rolls 18 constitute a receiving and holding table for the empty slug carrier 138. The right hand end of the shaft- 17 shown on Fig. 5 has thereon a sprocket over which runs a s rocket chain 21 leading from the left hand sfiaft 17, shown-in Fig. 4, and thesprocket on the right hand shaft 17 of Fig. 5 is rotatably mounted on such shaft and may be connected so as to rotate therewith by means of a clutch mechanism 216. The operating arm 217 of this clutch mechanism 216 is spring pressed and has connected thereto at the end remote from the clutch mechanism a bell crank lever 218 rotat'ably mounted on a shaft 219.

edge of the rectangular frame 205 and serves, when the rectangular frame isin its lowermost position, to operate the clutch mechanism 217 and connected drivin lower to the shafts 17 shown in Fig. 5 and, therefore, causes a rotation of the grooved rolls 18 in the direction ofthe arrow shown in such figure. It will be obvious, therefore, that if at this time a slug carrier 138 is mov in to the left, with reference to Fig. 5, on the grooved pulleys or rolls 18. thereon, that such slug carrier will have its march continued until the same is forced onto the grooved rolls 2l5carried by the rectangular frame 205, as shown in Fig. 5, and such march will continue until the left hand end of such slug carrier comes" into engagement with a contact bar or switch 220, which bar is pivotally mounted on a bracket 221. Se-

cured to such bracket 221 is a switch bar 222 circuit for enabling the armature of the hand corner of Fig. 5 has moved One arm of this bell crank lever lies in the path of movement of one .in Fig. 5.

mov es upward and clears the end of the motor 226 to rotate in such adirectionas to cause a rotation of the grooved pulleys 215 in a counter at one end of the pit lO isa panel board 227 and on thisjboard are arranged pivotally mounted control levers 228 and 229 respectively. These levers control the operation of the hydraulic cylinder 2041-v and are arranged with respect to the controlling valves thereof so that when the lever 228 is in the position shown in Fig. 5, the hydrauliccylinder 204- will be controlled in such a manner as to allow the piston thereof .to

clockwise I direction. Secured to the foundation of the machine as is the lever 229 shown in Fig. 5. Under these conditions; the hydraulic cylinder 204 is placed out of operation. Assume that the slug carrier 138 shown in the upper right gradually to the right until the end thereof moves out of engagement with the lever v229. This lever will immediately rotate in a clockwise direction and assume the same relative position with respect to this point as is shown with respect to the lever 228 and under these conditions thehydrauhc cyhnder 204.-

will cause the-piston thereof to move upward, carrying the rectangular frame 205 therewith upward until the mechanism has reached the dot and dash line position shown As the rectangular frame 205 switch bar 220, such switch bar will move into position to engage with the contact 222, thus again closing break point in the o eratin circuitfor the motor 226 and.

when the rectangular frame is in its uppermost posit-iomthe switch blade 225 (hereon will engage with a contact bar 230 secured to a bracket 231 mounted on a frame mem ber232 on the base of the machine and thus completes the energizing. circuit for the motor 225, causingthe armature ihereofto turn in such a direction as, to rotate the grooved rollers 215 in a clockwise direction and thusto feed the slug carrier 138 thereon to the right, as shown in Fig. 5. -As the rectangularframe 205 approaches its uppermost position, the upper portion of the slug vers 228 and 229 and will move them into their uppermost position or into the position illustrated by. the lever 229, thus stopping the further upward movement of the rectangular frame 205.

As above described, the slug carrier 138 carrier 138 will engage ith both of the 16- has moved step-by-step or intermittently to the right, as shown in Fig. 5, until the left hand end thereof moves past the delivery belts 13 until the racks 233 on the bottom thereof engage with the gears 55.

The feeding of empty slug carriers 138 into association with the slug delivery belts, the slitting of such slugs into a plurality of bricks, the removal of such plurality of bricks from the slug carriers and the feeding of such empty slug carriers into position to be again filled with slugs becomes an automatic and continuous operation. Assuming that an empty slug carrier fed off the rectangular frame 205, it is obvious from the above description such empty slug carrier will be moved intermittently stepby-step past the slug delivery belts 13, and when the slug carrier moves off the rectangular framework 205, such framework is automatically lowered into position to re ceive an empty carrier. The now filled slug carrier is automatically and positively fed under and through the parallelly arranged slitting saws 110 and onto the rectangular framework 117. From such framework the plurality of parallelly arranged bricks are removed and the removal thereof initiates the lowering of the rectangular framework 17 with the now empty slug carrier thereon and when such rectangular framework has reached its lowermost position, the empty slug carrier thereon is automatically moved outward therefrom and the rectangular framework 117 returned to its upper or normal position. The empty slug carrier 138 which has been removed from the rectangular framework 117 moves onto a storage device, where it will remain at rest until the rectangular framework 205 has returned to its lowermost position and the return of such rectangular framework to its lowermost position automatically initiates the removal of the empty slug carrier from the a storage device and onto the rectangular framework and with such empty slug carrier in position on the rectangular framework 205, mechanism is automatically operated for elevating, the rectangular framework 205 to a point where the cycle of operations may be again started.

lVhile I have necessarily described and illustrated the preferred embodiment of my invention somewhat in detail, it is to be understood that I may vary the size, shape,

and arrangement of parts within wide limits without departing from the spirit of the invention.

Having thus described my invention, what I claim as new is:

1. In an automatic brick hacking machine the combination of a vertically movable lift, aplurality of parallelly arranged rollers thereon forming a track, means for rotating said rollers in one direction when the lift is-in its uppermost positionand for rotating said rollers in the opposite direction when the lift is in its lowermost position.- i

2. In an, automatic brick hacking machine the combination of a vertically movable lift, a plurality of rollers thereon and forming a loa'dsupporting track, means for rotating saidrollers in either direction,

means'for moving said lift vertically and means for preventing the rotation of the rollers .duringithe vertical movement of the lift. 7 r

3. In a brick hacking machine the combination ofa vertically movable lift, a.pl11-' rality of parallelly arranged rollers thereon and forming a load supporting track, means operating normallywhen the lift is in its uppermost position for rotating said rollers in one direction, controlling meanstherefor operable when-a load is brought into position on said rollers forstopping the rotation of such rollers and automatic controlling-means for starting,saidoperatingmeans torotate the-rollers in the opposite direction when the liftreaches its lowermostposition.'

a. In a bination ofa vertically movablelift,'means for moving said lift, a plurality of-parallelly arranged rollerson said lift and forming a load supporting track therefor, means operating normally when the lift is in its uppermost position for rotating the rollers in one direction, controlling means for said operating means operable when a load is brought into position on said rollers for stopping the rotation of such rollers, conbrick hacking machine .the comtrolling devices for the lift operating means lelly arranged rollers on said lift and forming a load supporting track therefor, means operating normally when the lift is in its uppermost position for rotating the rollers in one direction, controlling means for said operating means operable whena load is brought into position on said rollers for stopping the rotation of such rollers, controlling devices for the lift operating means operable to cause a downward movement of the lift, automatic controlling means for causing a rotation of the rollers in an opposite direction when the lift reaches its lowermost position and a second controlling device for the lift operating means operable to initiate the upward movement of the lift simultaneously with the removal of the load from the rollers.

6. In a brick hacking machine the combination of a pit, parallelly arranged guidewayslocated at each end thereof a rectangular frame associated with. said guideways and movable vertically with respect thereto,

I a shaft rotatably mounted in said pit, arms secured to said shaft and pivotally attached to said rectangular framework whereby said rectangular framework is maintained horizontal during its upward and downward movement thereof.

7. In a brick hacking machinethe combination of a pit, vertically arranged guideways located at either end of said pit, an elongated rectangular framework associated with said guideways and engaging the "same during its upward and downward movement, a shaft rotatably mounted in said pit and extendingparallel to the longitudi nal axis of the rectangular framework, arms secured to the ends of said shaft, said arms having their free. ends pivotally attached to the ends of the framework whereby said framework is maintained horizontal during its vertical movement. I

'In testimony whereof, I have signed my name to this specification.

RAYMOND Cs PENFIELD. 

